Wrench.



H. H. HAYWARD. WRENCH. APPLIOATION FILED JULY 11, 1912.

1,077,343, Patented Nov. 4, 1913.

[N VEN T OR 93B #Mer/ wr 7 M Attorney HUBERT H. HAYWARD, OF ALDRICH,MISSOURI.

WRENCH.

Specification of Letters late nt.

Application tiled July 11, 1912. Serial No. 708,890.

To all whom it may concern:

Be it known that I, HUBERT H. HArwARo, a citizen of the United States,residing at Aldrich in the county of Polk and State of' Missouri, haveinvented certain ,new and useful Improvements in Wrenches, of which thefollowing is a specification.

My present invention relates to improvements in wrenches of the classdesignated multiple pivoted jaws, and is designed to rovide a tool whichmay be handled with facility when performing the functions of a wrench,-which iscomparatively cheap in first cost, durable, and efiicient in itswork.

The invention consists in certain novel combinations and arrangements ofparts as hereinafter set forth and claimed. In the accompanying drawingsI have shown an exemplification of my invention constructed according tothe best mode I have so far devised for the practical application of theprinciples. 7

In the accompanying,,drawings: Figure 1 is a plan'view of the wrench.Fig. 2- is an edge viewof the wrench, as seen from the a 7 left in Fig.1.-

In the preferredjembodiment of my in- -vention I'utilize a pair of jawsas indicated by the numerals 1 and 2, the former being part of aheadyformed on the. shank 3 and the latter having the integral shank 4.The jaws are of suitable size and are formed with the customary teeth 5and 6. For convenience in description '1 shall refer to the jaw 1 asstationary and jaw 2 as movable, the latter being movable relative to,the former.

Side plates 7, located one. at each side of the wrench, perform crumedlevers, the fulcrum being the bolt 8 which is assed through the shank 3and by means 0 the bolt 9 the short end.of the lever is pivoted to themovable jaw. The long end of the lever of the link 10 and bolts 11 and12, in a slot in the stem 13 of the wrench. The usual handle 13' isattached to the stem for Coplee at this patent may be obtained for thatswinging ing to the right and upwardly,

the function of fulis pivoted by means manipulating the tool. -The shortarms. of the levers 7 are spaced shanks 4, and the long arms of thelevers are bent toward each other to embrace at their inner endsthe link10.

At .its upper end the stem is forked as Patented Nov. 4, 1913 apart toembrace the at 15 and by means of the bolt 16 the lower endof theshank/L is pivoted in the fork. The bolt also passes through the end ofa second link 17', which link, at its opposite end is pivoted in the end18' of the'shank 3, by means of the bolt 18. Upon reference to 'Fig. 1especially, it -will be apparent the handle to the right will open thewrench, z. e. withdraw the jaw 2 from the jaw 1.

vers on their fulcrum 8, the pivot 11 swingand the pivot 9 swingingdownwardly. A movement ofthe handle 13' to the left will draw pivot 11to the left swing pivot 9 upwardly and thus close the jaw 2 against 1.

What I claim is':-

L-The combinatl n with a pair of jaws each having a' shank, of sideplates pivotally connecting said shanks, a link pivotally connectingsaid shanks at their ends, and a handle having a stem connected to oneof said shanks and to saidside plates, whereby movement of the handlechanges the relative osi'tion of said jaws.

2. n a wrench, the combination with a pair of jaws each having a shank,of side plates forming levers with the short arm of the leverspiv'otally connecting said shanks, a link pivotally connecting the endsof the shanks, a stem pivotally connected to the end of one shank, and alink pivotally connecting the stem to the long lever arm of the sideplates.

In testimony whereof I ailix my signature in presence of two witnesses.

HUBERT H. HAYWARD.

Witnesses:

O. M. COURTNEY, E. SMITH.

five cents each, by addressing the Commissioner 0! Patents,

Washington, D. c.

v This movement is accom-. plished by swinging the side plates 7 as 1e-

